* {
    margin: 0;
    padding: 0;
    outline: none;
}
#box {
    width: 300px;
    height: 300px;
    margin: 0 auto;
    border: 1px solid #ADADAD;
    border-radius: 15px;
    box-shadow: 1px 1px 1px #ADADAD;
    text-align: center;
    position: relative;
}
#box h3 {
    padding: 10px 0;
}
#box .img {
    width: 280px;
    height: 200px;
    margin: 0 auto;
    position: relative;
}
#box .img img {
    width: 100%;
    height: 100%;
}
#box .img .block {
    width: 50px;
    height: 50px;
    background-image: url(../img/t1.jpg);
    background-repeat: no-repeat;
    background-size: 280px 200px;
    left: 0;
    position: absolute;
    opacity: 0;
    z-index: 10;
}
#box .img .block2 {
    top: 10px;
    left: 100px;
    position: absolute;
    width: 50px;
    height: 50px;
    background-color: white;
}
#box .slider {
    width: 280px;
    height: 30px;
    margin: 10px auto;
    background-color: #DDDDDD;
    border-radius: 10px;
    position: relative;
}
#box .slider .pass-bar {
    width: 0px;
    height: 30px;
    margin: 10px auto;
    background-color: skyblue;
    top: -10px;
    left: 0;
    border-radius: 10px;
    position: absolute;
    color: white;
    font-weight: bold;
    line-height: 30px;
}
#box .slider button {
    z-index: 20;
    width: 45px;
    height: 45px;
    position: absolute;
    left: 0;
    top: -8px;
    background: white url(../img/yz.png) no-repeat;
    background-size: 100%;
    border-radius: 50%;
    border: 0;
}
.change-img {
    width: 190px;
    padding-left: 40px;
    margin: 30px auto;
    text-align: center;
    overflow: hidden;
    line-height: 50px;
    background: url(../img/sx.png) no-repeat;
    background-size: 30px 30px;
    cursor: pointer;
}
.change-img span {
    line-height: 30px;
    float: left;
    height: 100%;
    color: rgb(137, 44, 224);
    font-weight: bold;
}
